:root {
    --primary-color: #0A192F;
    --accent-color: #FFD700;
    --text-color: #FFFFFF;
    --button-bg-color-register: #E74C3C;
    --button-bg-color-login: #2ECC71;
    --button-text-color: #FFFFFF;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #1a2a40;
}

/* Header Styles */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    min-height: 60px;
    background-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.header-top {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.logo {
    font-family: 'Georgia', serif;
    font-size: 28px;
    font-weight: bold;
    color: var(--accent-color);
    text-decoration: none;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    padding: 0 15px;
}

.main-nav {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 20px;
}

.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 25px;
}

.main-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: bold;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s ease;
}

.main-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 0;
    height: 3px;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

.main-nav a:hover {
    color: var(--accent-color);
}

.main-nav a:hover::after {
    width: 100%;
}

.header-buttons-desktop {
    display: flex;
    gap: 15px;
    margin-left: auto;
}

.header-buttons-mobile {
    display: none;
    padding: 10px 20px;
    background-color: var(--primary-color);
    justify-content: center;
    gap: 15px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    z-index: 1000;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: bold;
    text-decoration: none;
    color: var(--button-text-color);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    outline: none;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
    text-align: center;
}

.btn-register {
    background: linear-gradient(135deg, #E74C3C, #C0392B);
    border: 1px solid #C0392B;
}

.btn-register:hover {
    background: linear-gradient(135deg, #C0392B, #E74C3C);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5), 0 0 15px var(--button-bg-color-register);
}

.btn-login {
    background: linear-gradient(135deg, #2ECC71, #27AE60);
    border: 1px solid #27AE60;
}

.btn-login:hover {
    background: linear-gradient(135deg, #27AE60, #2ECC71);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5), 0 0 15px var(--button-bg-color-login);
}

/* Hamburger Menu */
.hamburger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 1001;
}

.hamburger-menu .bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 5px 0;
    transition: 0.4s;
    border-radius: 2px;
}

/* Footer Styles */
.site-footer {
    background-color: var(--primary-color);
    color: var(--text-color);
    padding: 40px 20px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 50px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding-bottom: 30px;
}

.footer-column h3 {
    color: var(--accent-color);
    font-size: 1.2em;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.footer-column p, .footer-column ul {
    font-size: 0.9em;
    margin: 0;
    padding: 0;
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 8px;
}

.footer-column a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.85em;
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .header-top {
        padding: 10px 15px;
    }
    .main-nav ul {
        gap: 15px;
    }
    .logo {
        font-size: 24px;
    }
    .btn {
        padding: 8px 15px;
        font-size: 0.9em;
    }
}

@media (max-width: 768px) {
    .site-header {
        flex-direction: column;
        align-items: stretch;
        min-height: auto;
    }

    .header-top {
        justify-content: space-between;
        padding: 10px 15px;
    }

    .hamburger-menu {
        display: block;
        order: -1;
        margin-right: 15px;
    }

    .logo {
        flex-grow: 1;
        text-align: center;
        padding: 0;
    }

    .header-buttons-desktop {
        display: none;
    }

    .header-buttons-mobile {
        display: flex;
        order: 3;
        box-shadow: none;
        padding-top: 0;
        z-index: 1000;
        position: relative;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        height: 0;
        overflow: hidden;
        background-color: var(--primary-color);
        transition: height 0.4s ease-in-out;
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        box-shadow: 0 8px 16px rgba(0,0,0,0.4);
        z-index: 1001;
        padding: 0;
    }

    .main-nav.active {
        height: auto;
        max-height: 80vh;
        overflow-y: auto;
    }

    .main-nav ul {
        flex-direction: column;
        width: 100%;
        padding: 20px 0;
    }

    .main-nav li {
        width: 100%;
        text-align: center;
    }

    .main-nav a {
        display: block;
        padding: 15px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .main-nav a::after {
        display: none;
    }
    .main-nav li:last-child a {
        border-bottom: none;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-column ul {
        margin-bottom: 20px;
    }
    .footer-column:last-child {
        margin-bottom: 0;
    }
}